there's vice president joe biden partying hard tonight in washington. >> i apologize. >> not sure what he's doing. let's take a little listen. >> i'm going to be very brief. i came to say thank you. i saw to you, thank you. i also came to tell you what my green wish is. >> let's see if the vp may drift in to al green. show barack obama what he's made of. we'll be back after the break. >> washington's big weekend. a chance for a-listers to mix with everybody who's anybody in the world of politics, entertainment, you name it. they're here. parties both official and unofficial erupting all over town tonight and joining me now is the ultimate party boy himself, my old buddy of "america's got talent" nick cannon with an event with the first lady last night. good to see you. >> you, too. >> a quick word with doug brinkley about dr. angelou there. what did you make of what she said and martin luther king may have said to barack obama? >> just i thought it was very moving and you got a nice call-out from her. she's a great moral force like elie weitzel and in hundred years from will be a hundr